Buick Regal 2018-2026 Service Manual / Transmission / Automatic Transmission - Aisin AF50-8 (MRC)
Buick Regal: Automatic Transmission - Aisin AF50-8 (MRC)
- Specifications, Schematic Wiring Diagrams
- Component Locator
- Diagnostic Information and Procedures
- Repair Instructions - On Vehicle
- Repair Instructions - Off Vehicle
- Description and Operation
- Special Tools and Equipment
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Specifications, Schematic Wiring Diagrams
Specifications
FASTENER SPECIFICATIONS (OFF VEHICLE)
Single Use Non-Threaded Fasteners/Components
NOTE:
All fasteners/components listed in this table MUST BE DISCARDED and replaced
with NEW
after rem
Component Locator
DISASSEMBLED VIEWS
Case and Associated Parts (1 of 2)
Transmission Control Module Bolt [3x]
Transmission Control Module
Manual Shift Shaft Seal
Transmission Fluid Filler Tube Plug
Transmission
SEE MORE:
DTC B258A or B258E
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Diagnostic Procedure Instructions provides an overview of each
diagnostic category.
DTC Descriptors
D
Antilock Brake System (ABS)
Warning Light
This light comes on briefly when the
engine is started.
If the light does not come on, have it
fixed so it will be ready to warn if
there is a problem.
If the light comes on while driving,
stop as soon as it is safely possible
and turn off the vehicle. Then start
the engine again to reset the
sys
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